Electric-lamp fixture



mmumm III IIHIHIIIJIM R. H. SHELDRICK.

ELECTRIC LAMP FIXTURE.

APPLICATION FILED JUNE26, 1920.

Patented Dec. 21, 1920.

UNITED STATEEi RALPH I-I. SHELDRICK, OE XVATERBURY,

CONNECTICUT, ASSIGNOR TO I THE CHASE COMPANIES, INC, OF WATERBURY,CONNECTICUT, A CORPORATION.

ELECTRIC-LAMP FIXTURE.

' Application filed June 26,

Z '0 all whom it may concern:

Be it known that I, RALPH H. SHELD- RICK, a citizen of the UnitedStates, residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented a new and useful Improvement in Electric-LampFixtures; and I do hereby declare the following, when taken inconnection with the accompanying drawings and the characters ofreference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawings constitute. part of this application,and represent, in-

Figure 1. a view partly in side elevation and partly in central verticallongitudinal section of a wall-bracket constructed in ac cordance withmy invention and shown as assembled for use.

Fig. 2. a view thereof in front elevation on a reduced scale.

Fig. 3. a view thereof partly in side elevation and partly in sectionwith its three component parts separated from each other and arranged inline, though not in the order of assembly.

Fig. 4. a plan view of the supporting nut.

y invention relates to an improved wallbracket for electric-lampfixtures. Heretofore such wall-brackets have either had their tubularextensions permanently secured to their shells or assembled therewith bymeans of an inner iron pipe in turn secured to the Wall by a crowfoot.The construction first mentioned is bulky to ship, while the otherconstruction described, requires more parts, is inconvenient toassemble, and is heavy, and so costly to pack and transport. The objectof my invention is to produce a cheap and compact article, designed withparticu lar reference to convenience and economy of shipment and tobeing initially assembled by the user himself.

With these ends in view, my invention consists in a wall-bracket havingcertain details of construction and combinations of parts as will behereinafter described and pointed out in the claim.

In carrying out my invention, as herein shown, I form a thread 2 andabutment bead 3 upon the inner end of the tubular extension 4 the outerend of which is furnished with the usual ball 5 carrying a nipple 6, butthe parts located at the outer end coupling and Specification of LettersPatent.

Patented Dec. 21, 1.920. 1920. Serial No. 391,862.

of the extension form no part of my present invention. With such atubular extension, I employ a one-piece shell comprising a dome 7, abeaded base 8, and a fasteningfiange 9 having perforations 10 by whichthe canopy is secured to a wall or corre sponding surface. The apex ofthe conical dome 7 is formed with a concentric opening 11 just largeenough in diameter to receive the threaded inner end of the extension,the abutmentshoulder 4 of which is thus brought to bear upon the outerface of the apex of the dome, as shown in Fig. l. The inwardlyprojecting threaded end of the extension now has applied to it a specialone piece coupling and supporting nut having a threaded sleeve 12 and asupporting-flange 13 turned back, as it were, at an acute angle from theforward end of the sleeve 12 and pitched to correspond to the pitch ofthe apex of the dome, so that when the sleeve 12 is screwed over thethreaded inner end of the extension 2, the outer face of the flange 13will engage with the inner face of t 1e apex of the dome and so providea wide supporting surface for maintaining the tubular extension inalinement with the axis of the canopy.

The extension, canopy, and coupling and supporting nut, above described,are packed before being assembled, whereby handling and packing-spaceare saved. The user has no difficulty in initially assembling them,since he has only to insert the threaded end of the tubular extensioninto the concentric opening in the apex of the canopy and apply thewasher thereto from within the canopy.

It is apparent that under my invention the individual parts may bevaried in design, size, and length. so long as the particular featuresto which my invention relates, are standardized. Thus, it makes nodifference how long the tubular extension is, if its inner end isthreaded and provided with an abutment-shoulder. nor does the length ofthe tubular extension or the size or design of the canopy in any wayaifect the coupling and supporting nut, so long as the same is adaptedin diameter to fit the threaded end of the extension, and so long as itssupporting-flange substantially corresponds to the shape of the apex ofthe shell.

While primarily designed for side-wall brackets my improved constructionis 7 called canopy of the ceiling fixture.

I claim: A combined one-plece sheet-metal coupling and supporting nutfor use in assembling electric-lamp fixtures having domical shells andthreaded and beaded tubular e-xtensions, the said nut having a threadedcoupling-sleeve adapted to be applied to the threaded inner end of suchan extension and also having a flaring integral supportingflangerearwardly inclined from the outer end of the said threaded sleeve andengag- 15 ing with the inner face of the doinical shell of such afixture and serving to support the extension thereof against sagging.

In testimony whereof I have signed this specification in the presence oftwo subscrib- 20 ing Witnesses.

RALPH H. SHELDRICK.

Witnesses JOHN S. NEAGLE, B. C. A'rwoon.

